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[boost]

I wonder if anyone can help me out with this?

I've been trying to work out where exactly the frequency overlap is between ADSL and G.SHDSL.biz/EFM/bonded SDSL.

The broadband forum has this handy document:

http://www.broadband-forum.org/marketing/download/mktgdocs/SHDSL_wp.pdf

which highlights the following:



but as you can see, this is at 768Kb only. EFM is commonly deployed as a 10Mb circuit, with at least two TPs in the bond.

Exactly how much of the ADSL band is negated, I wonder?

[kitz]

I dont know, but I did find a document about Copper EFM bonding to get 10Mbps & using Annex_J PSD masks if its any use.

http://grouper.ieee.org/groups/802/3/efm/public/jul02/copper/artman_copper_1_0702.pdf

[boost]

That looks a great read, thanks

[boost]

In fact, that looks brilliant. We could side step the entire issue of DMT vs PAM? (Which I still don't understand!)

Bin ATM, bin the voice band. Bonded ADSL delivered with PTM.

Everyone's a winner?